Car-roof.



' R. w. BURNETT.

CAR ROOF.

APPLICATION FILED IAN. 31. I913.

Patented May 8,1917.

i-L A nr rain.

RICHARD WEBB BUBNETT, OF'MONTREAL, QUEBEC, CANE.

To all whom it may concern:

Be it known that I, RICHARD WEBB BUR- NETT, residing at the city of Montreal, Province of Quebec Dominion of Canada, a citizen of the United States of America, have invented certain new and useful Improvements in Gar-Roofs; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates particularly to allsteelroofs for railway cars although it may be applied with advantage to roofs of other structures, movable and stationary; and it may be said, broadly speaking to consist of means within carlines of inverted U-form and attached rigidly within the same without perforating the same, and roof sheets with upwardly turned side edges are supported by this means through the medium of devices permitting limited displacement of the roof sheets relatively to the carlines.

Other features of the invention comprise integral parts of the carlines acting as spacers between the side plates of the car body and the ends of the carlines turned down over them, to permit play of the roof. sheets in the space established.

For full comprehension, however, of my invention, referencernust be had to the accompanying drawings forming a part of this specification, in which similar references indicate the same parts and wherein:

Figure 1 is a side elevation of a portion of my, improved roof;

Fig. 2 is a transverse, vertical, sectional view of the roof of a railway car con structed according to my invention, the section being taken on line AA of Fig. 1;

Fig. 3 is an enlarged, detail, longitudinal, sectional view taken on line B-B of Fig. 2;

Fig. 4i is an enlarged, detail, transverse, sectional view taken on line CC of Fig. 3.

The carlines b are of inverted U-crosssection and flanged as at b and the side plates 0 of Z-cross-section; the carlines' being turned down over the side plates and having their ends sheared 0d as at d for ventilating purposes, while spaces are established between the flanges I) and the side plates by distance thimbles formed by punching flanged rivet-holes e in the flanges of the turned down carline ends, the thimbles being greater in depth than the thickness of the roof sheets. The portions of the sheets in juxtaposition with these thimbles have elongated eyes 9 sufficiently large to Specification of Letters Patent.

Patented May 8, 191?.

Application filed January 31, 1913. Serial Ito. manta inclose the thimbles and have play relathrough rivet-holes in the side plates, and

through the thimbles, and upon being tightened the thimbles and consequently the carlines are rigidly clamped to the side plates. The effect is that a space equal in depth to the thimble is established between the carline and side plate, and although the sheets are prevented from having their side edges displaced completely from beneath the carlines they are not rigidly held but are perfectly free to shift within the limits set by the eyes g. I

It has not been possible heretofore to afford a support for the side edges of the roof sheets within the carlines without imparting particular formation to or perforating the latter; but owing to excessive cost or danger of leakage the devices suggested have not solved the problem.

in order to atford the required support for the roof sheets from within the carline and without perforating the latter I weld bolts 2 at interval to the interior of the top or dome thereof, the edge of the roof sheets being upwardly ofi-set as at 3 and provided with registering holes 4 through which the bolts are passed when the carlines are set in place over the edges of the sheets, such holes being sufficiently larger in diameter than the bolts to permit of the play incident to flexibility of the car frame. lhese bolts have sheet supporting bars 9 fitted thereon and held up by cotter pins 10 passed through slots 12 in the bolts.

In order to prevent cinders, dust, snow and the like blown across the roof from entering beneath the carline the roof sheets are formed with inclined shoulders 20 pressed up from the sheets contiguous to the flanges of the carlines, the effect being that the particles are deflected upwardly over the flanges instead of following the surface of the roof sheet and entering beneath the carlines as they otherwise would.

The running board 21 is supported upon the carlines 6, preferably through the medium of brackets 22 and cross bars 23 which are riveted or otherwise rigidly secured. By reason of this construction I obtain a rigid and secure running board aaaeae' without in any way interfering with the freedom of movement of the roofing sheets necessary in a flexible type of roof. This is due to the fact that 'thecarlines-which are rigidly attached to the, side lates of the within the carlines, and means carried by said bolts above the main planes of said sheets for sur'saining said sheets.

2. In-a' car roof, the combination with carlines of inverted U-form having slotted bolts integrated with the interior thereof, roof sheets extending upward within the carlines, bars adjacent said sheets positioned within the carlines and fitted upon the bolts, said bars supporting said roof sheets and cotter pins inserted through the slots in the bolts for retaining said bars in position within the carlines.

3. In a car roof, the combination with side plates, of roof sheets bent down over the side plates, flanged inverted U-form carlines coverin the joints'between the roof sheets and a so bent down over the side plates, means for spacing said carlines from the .sideplates, means for supporting said roof sheets from said carlines and out of contact therewith, and means for securing the sheets between said carlines and side plates while permitting play of the sheets incidental to the weaving of the roof, both with reference to the carline and said side plate.

4. The combination with inverted substantially U-form im erforate carlines, having a member depen ing within the U, of a roof sheet having a flange carried upward within the hollow of the oarline above the plane of the body of the roof sheet, and supporting means therefor carried by said depending member.

5. The combination with inverted U-form imperforate carlines, having bolts depending within the U, of roof sheets having flanges carried upward within the hollow of the carline above the plane of the body of the roof sheet and transverse of said bolts and perforated to receive the bolts, and supporting means therefor carried by the bolts.

In testimony whereof I have signed my name to this specification in the presence of two witnesses.

RICHARD WEBB BURNETT.

Witnesses:

E. R. Prr'rs, W. J. C. HEWE'ISON. 

